Use After Free The advisory has been revoked - it doesn't affect any version of package thunderbird (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-581277
- published22 May 2019
- disclosed23 Jul 2019
Introduced: 22 May 2019
CVE-2019-9820 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu.
A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-9820
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9820
- https://security-tracker.debian.org/tracker/CVE-2019-9820
- https://www.mozilla.org/security/advisories/mfsa2019-13/
- https://www.mozilla.org/security/advisories/mfsa2019-14/
- https://www.mozilla.org/security/advisories/mfsa2019-15/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1536405